West Robert
University of Notre Dame, Notre Dame, Indiana 50011, USA.
Mem Cognit. 2007 Jul;35(5):1034-46. doi: 10.3758/bf03193476.
The influence of strategic monitoring on the neural correlates of prospective memory was examined in two experiments. Strategic monitoring was manipulated by varying the context in which prospective cues occurred, with the cues requiring a prospective response in one task context and not the other. The N300, associated with cue detection, and the prospective positivity, associated with postretrieval processes, were elicited by prospective hits and were not elicited by prospective misses or ignore prospective cues. A parietal old-new effect was elicited by prospective misses and ignore prospective cues. Together these findings indicate that strategic monitoring may be necessary for cue detection and the recruitment of postretrieval processes, but not the recognition of a prospective cue as an old item. These findings serve to refine strategic monitoring and automatic associative accounts of prospective memory.
在两项实验中,研究了策略性监测对前瞻记忆神经关联的影响。通过改变前瞻线索出现的情境来操纵策略性监测,其中线索在一种任务情境中需要前瞻反应,而在另一种情境中则不需要。与线索检测相关的N300以及与检索后过程相关的前瞻正波,由前瞻命中引发,而不由前瞻失误或忽略前瞻线索引发。前瞻失误和忽略前瞻线索会引发顶叶新旧效应。这些发现共同表明,策略性监测对于线索检测和检索后过程的启动可能是必要的,但对于将前瞻线索识别为旧项目则不是必需的。这些发现有助于完善前瞻记忆的策略性监测和自动联想解释。